Molding-machine.



Patented Nov l3, I900.

W. ZOELLER. MOLDING MACHINE.

Ap lication filed Apr. 20, 1900.1

14 Sheets She et I.

(No Model.)

N0. 66|,57l. Patented Nov. l3, I900.

' W. ZUELLER.

MOLDING MACHINE.

(Application filed Apr. 20, 1900.) (No Model.) l4 Sheets-Sheet 2.

No. 66l,57l. Patented Nov. I3. I900.

W. ZOELLERM MOLDING MACHINE.

(Application filed Apr. 20, 1900.) (m Modal.) l4 Sheets-Shoat 3.

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N0. 66!,57l. Patented Nov. I3, 1900.

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MOLDING MACHINE.

(Application filed Apr, 20, 1900.1 1 (Nd Model.) l4 Sheets-Sheat 4.

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No. 66|,57l. Patented Nov. l3, I900. W. ZDELLER.

MOLDING MACHINE (Application filed Apr. 20, 1900.) (No Model.) l4 Sheets-Sheet 5.

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No.'66l,57l. Patnted Nov; l3, lso'oj w. 20mm.

MOLDING MACHINE.

' (Application filed Apr. 20, 1900.) (No Model.) l4 Sheets-Sheet 6.

TH: mums PETERS 00.. FHOYOLITHO WASHINGTON. n. c.

No. 66l,57l. Patented Nov; l3, moo. w. zouuan.

MOLDING MACHINE.

7 (Application filed Apr. 20, 1900. (No Model.) l4 sheets sheet 7.

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w. ZUELLER.

MULDING MACHINE.

l4 Sheets8heet 8.

(Application filed Api'. 20, 1900.) (No Model.)

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WFQEEEE No 66|,57|. I Patented Nov. I3, I900.

W.ZOELLER.

MOLDING MACHINE.

(A lication filed Apr. 20, 1900.) (No Model.) l4 Sheets-Sheet 9.

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N0.'66|,57l. Patented Nov. l3, I900;

w. Z OELLEB.

MOLDING MACHINE.

(Application filed Apr. 20, 1900.) (No Model.) l4 Sheets-8heef ID.

THE uonms PEYERS cu. wovoauwovv WASHINGYON. n. c.

No. 66l,57|.

W. ZOELLER.

MOLDING .MACHINE. (Application fiid Apr. 20, 1900.\

(No Model.)

Patented Nov.. |3, |900.

l4 Sheets-Sheet II.

N0. 66|,57l. Patented Nov. I3, I900. w. ZOELLER.

MOLDING- MACHINE.-

(Application filed Apr. 20, 1900A (No Model.) l4 Shee tsSheet I2.

No. '66'|,57l. Patented Nov. l3, I900.

W. ZOELLER.

MOLDING MACHINE.

(Application filed Apr. 20, 1900.) (No Mbdel.) l4 Sheets-Sheet l3.

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7% gca a a No. 66l,57|. Patented Nov. 13,1900. W.ZOELLER.

MOLDING MACHINE.

(Application filed Apr.,20, 1900,)

(No Model.)

l4 Sheets$heet l4.

UNITED STATES PATENT OFFICE.

WILLIAM zoELLER, or CHICAGO, ILLINOIs.

MOLDING-MACHINE.

sPnoIrmA'rIoN forming part of Letters Patent No. 661,571, dated. Noee'mtei 13, mod.

' Application filed April 20, 1900. Serial No. 13,626. tNo models 1 To all whom, it may concern.-

Be it known that I, WILLIAM ZOELLER, a citizen of the United States, residing at Ohicago, county of Cook, State of Illinois, have invented a certain new and useful Improvement in Molding-Machines, of which the following is a specification, reference being had to the accompanying drawings, forming part thereof.

My invention relates to machines for making the ornamental relief-work employed in manufacturing picturemolding, and more particularly to machines which produce this relief-work or ornament, as it is commonly called, by subjecting a suitable plastic materialto the embossing action of a figured roll or rotary die.

Objects of my invention are to provide a simple and easily-operated machine which will produce the said ornament in such form that it can be readily applied to picture-molding or other like articles for the purpose of ornamentation; to provide a construction which will make the operation of producing the ornament practically continuousthat is to say, which will permit such ornament to be molded in a continuous strip which can be cut off in suitable lengths as fast as it is formed to provide a construction involving an endless band or belt adapted to provide a traveling support for the composition and also involving means for first embossing or ornamenting the plastic composition as it moves along with the band orbelt and forthen effectively shaving or paring off the ornament; to reduce the cost of the manufacture of pieturemolding, and to provide certain details and features of improvement tending to increase the general efficiency and to render a machine of this character serviceable and thoroughly reliable.

To the attainment of the foregoing and other useful ends my invention consists in matters hereinafter set forth and claimed.

In the accompanying drawings, Figure 1 is 'a view more or less diagrammatic in character and illustrating in sideelevation a molding'machiuc involving the principles of my invention. Fig. 2 is a plan of the middle or central portion of the machine shown in Fig.

1. Fig. 3 is a transverse section on line 3 3 in Fig. 2. Fig. 4 is a longitudinal section on line t 4 in Fig. 2. Fig. 5 is a transvere section on line 5 5 in Fig. 2. Fig. 6 is a vertical section on line 6 6 in Fig. 5, showing the side of the machine with the. pulleys and gearing removed. Fig. 7 is a plan of the left-hand end of the machine shown in Fig. 1. Fig. 8 is a side elevation of the portion of the machine shown in Fig. 7. Fig. 9 is a plan of the right-hand end of the machine shown in Fig. 1. Fig. 10 is a side elevation of the portion of the machine shown in Fig. 9. Fig. 11 is a transverse section on line 11 11 in Fig. Fig. 12 is a vertical section of one of the plowshaped trimmers on line 12 12 in Fig. 2 Fig. 13 is a vertical section on line 13 13 in Fig. 2. Fig. 14 is a vertical section on line 14-14 in Fig. 2. Fig. 15 is a detail of the expansiongearing which connects the two roll-shafts. Fig. 16 is a vertical section on line 16 16 in Fig. 1. Fig. 17 is a side elevation of that portion of the machine shown in Fig. 16. Fig. 18 is a vertical section on line 18 18 in Fig. 1. Fig. 19 is a side elevation of that portion of the machine shown in Fig. 18. Fig. 20 is an end view of the upper portion of the left-hand end of the machine, showing the knife which shaves or pares off the ornament and also showing the devices by which said knife is adjusted. Fig. 21 is a vertical section on line 21 21 in Fig. 20. Fig. 22 is a section through the rim of one of the band-wheels and also through the band or belt, showing the crowned peripheries with which said wheels are provided. Fig. 23 is a horizontal section on line 23 23 in Fig. 20. Fig. 24: is a detail of one of the devices for adjusting the knife vertically. Fig. 25 is a sectionalview illustrating one of the sliding or adjustable bearings for the band-wheel at the left. Fig. 26 is-a vertical section on line 26 2b in Fig. 25.

The molding-machine thus illustrated comprises an endless band or belt A, trained over pulleys or band-wheels A and A This band serves as a traveling support for the plastic composition from which the ornament is molded, and at a point between the two bandwheels I arrange a stand or body-frame B, suitable for supporting the means for embossing or ornamenting said composition as it moves along on the upper surface of said band or belt. The plastic composition is placed upon the upper leaf of the band or belt at a,

and the said embossing or ornamenting means consists of a figured roll or rotary die 0. This roll is mounted upon a rotary shaft which is arranged transversely above the upper leaf of the band. v Preferably a couple of split collars c are clamped upon the shaft and suitably keyed to the roll. This avoids grooving or otherwise marring the shaft. The end portions of said shaft are supported in bearings G which are pivoted or trunnioned in boxes 0 These boxes are arranged to slide up and down in guideways provided by the housings or standards B, which rise from the top of the stand or body-frame B. The said boxes are secured to the lower ends of the threaded rods or stems c, which are supported by the rotary adjusting nuts 0 suitably mounted in the upper portions of the said housings. Theseadjusting-nutsare provided with teeth which mesh with the teeth of the bevel-gears c loosely mounted upon the horizontal and transversely-arranged shaft 0 The hub portions of these bevel-gears are adapted to engage the sliding clutch members c, which are on a feather or spline, and a gear-wheel c is keyed to the shaft at a point between the said sliding clutch members. A shaft 0 mounted in suitable bearings and having a pinion c, which engages the gear 0 is provided at its end with a crank 0 Obviously with this arrangement the roll C, and

' swings about the shaft D.

shaft 0 can be raised and lowered at will}. By closing both clutches and turning the crank the said shaft and roll can be raised and lowered bodily, while by closing but one clutch and then turning the crank the shaft 0 can be inclined or placed at an angle should the character of the work require that the roll 0 be tilted to one side.

Supported in suitable bearings and arranged transversely below the upper leaf of the band or belt is a shaft D. This. shaft is provided with a roll D, which bears against the under surface of the band and whichsupports the same against the downward pressure of the impression-r0110. The shafts C and D are connected by the expansion-gearing'B the gears 17 and b, mounted, respectively, upon the shafts C and D, and the pinions: b and b mounted upon the plate b, which,

- provided with a segmental slot b through which extends. a lockingscrew 19 this arrangement the shaft 0 is drivenfrorn shaft D through the medium of the said expansion-gearing, and the said. shaft G can. be raised and lowered at will, the swinging plate I) permitting the pinion b to be main; tained in engagement with the gear I) regard,- less of the latters position; The opposite end portion of the shaftD is providedfwith a loose sleeve D A number of different-sized pulleys D are keyed upon the sleeve, and a gear D- and a sprocket D are keyed directly to the shaft. The inner end ofthe said sleeve is provided with teeth (1, which engage a gear This expansion-gearing consists of' The said plate is.

With

E on the shaft E. A pinion E onsaid shaft E engages the gear D In this way power applied to one of said pulleys is transmitted to the shaft D through the medium of the sleeve and the gearing, and the band or belt is driven from this shaft through the medium a of the sprockets. D and D and the sprocketchain D The gearing is preferably so proportioned that the belt has the same velocity as the periphery of the impression-roll.

As previously stated, the plastic composition is placed upon the band or belt at a, and for the purpose of'directing it to the impression-roll I provide a'pair of guides F. Each guide is provided with a stem f, which slides in a socket-piecef, and each socketpiece is in turn provided with a stem f which slides in. ajsocketed bracket f secured to the top of the stand or body-frame B. Set-screws. f and f lock the stems in their sockets. The said brackets are provided with slots f and are secured to theupper surface of the. bodyframe by boltsf With this. arrangement the guides can be adjusted toward or away from the roll, and as they have telescoping or extensible connections. with the body-frame theycan also be adjusted laterally, so as to vary the width of the strip of plastic material as it. moves beneath the roll.v The first adjustment is secured'by loosening the bolt able frame G and rotates upon cone-bearings.

provided by the tapered ends. of the screws g. The stem or rod g has a yielding connection with the said frame by reasonv of the spring g and the threaded lower end portion of this. stemor rod isengaged by the threaded bore of a bevel-gear g Said bevel-gear is suitably mounted in a bearing on the bodyframe and serves as an adjusting-nut for raising and lowering the cutters. This adjusting-nut is easily and conveniently rotated by a hand-wheelGd, secured to the outer end of -a shaft G which is provided at its inner end with a bevel g engaging the teeth of said nut. In. this way the frame and cutters can be adjusted vertically, and it will be seen that the spring g permits the cutters to automatically rise and avoid. breakage should they be brought. into contact with some hard object or substance embedded in the composition. Each cutting disk is adjustably clamped upon the shaft g, and in this way the distance between the two disks can be varied according tothe width of ornament being made. After being thus separated or out off the sur- IIO ' weighted to keep them in contact.

plus marginal portions of the composition are then trimmed and scraped 01f from the band by the two trimmers H. It Will be ob served that each trimmer is plow-shaped, being provided with a knife h and a moldboard h, and that consequently the marginal portions of the composition are by them scraped up and directed off at either side of the band. Each trimmer is provided with a split shank 173, which clamps upon the rod H, and the screws 72. permit the trimmers to be readily adjusted along the rod, it being understood that it is desirable to keep the points of the trimmers in line with the cuttingdisks. As a simple and eifective arrangement whereby the trimmers may be adjusted vertically and also toward and away from the cutters I arrange a rod or bar H at each side of the machine, and upon these rods I mount a bar or casting H having suitable clamping means or devices for clamping it at any point along the length of said rods. Removably secured by bolts h to the top of said bar or clamping-piece are the socketpieces 1?, and ad justably secured in the sockets of the latter are the stems h. The said stems can be adjusted up and down in their sockets and locked at any point by the set-screws 72F, and the heads of the stems are split and provided with screws h and adapted to receive and securely hold the end portions of the rod H. Thus it will be seen that the distance between the trimmers can be varied at will, that they can be readily adjusted vertically, and also that they can be moved toward or away from the cutters. Below the points of the trimmers I arrange a roll H which bears against the under side of the band and which is mounted in vertically-adjustable bearings. These bearings 72, are provided with stems h which are adjustably supported in sockets formed in the clampingpieces 77.. The said clamping-pieces are adjustably clamped upon the rods H Adjusting-screws 72 are provided for raising and lowering the stem, and set-screws it look the latter in their adjustments. With this arrangement the roll can be raised and lowered, and it can also be adjusted along the under side of the band.

The embossed or ornamented composition after passing between the trimmers moves along with the upper leaf of the band or belt and passing around the band-wheel A then moves along with the lower leaf in an opposite direction. In order to permit the band or belt to be properly trained, both bandwheels are provided with crowned peripheries. A scraper A cleans the inner surface of the band before it runsonto the bandwheel A and a similar scraper A cleans the periphery of said wheel. The said scrapers are adjustably mounted upon the rods (1, and both are, it will be observed, counter- The long sprocket-chain D is supported by idlers I, and the band is also supported at this point by idlers I. These idler-rolls are all car-. ried by a frame composed of the brackets I and the vertical and op positelyarranged rods I The said rods are adjustably supported by the brackets and held in place by the setscrews 7;. The idlers I are mounted in bearings i, which are adjustably clamped upon the said rods. In this way the idler-rolls are capable of vertical adjustment and can be positioned to suit the requirements. The

idlers I are preferably so formed that their.

peripheries contact with only the side portions of the chain. This avoids the objectionable vibration which would result from permitting the idlers to contact with the other portions of the chain. The lower leaf of the band or belt is also supported by an idler-roll K, arranged below the stand or body-frame B. Said roll is mounted in bearings K, which are adjustably clamped upon the rods K These rods are adjustably supported by the bracket K and are held in place by the setscrews 70.

The band-wheel A is mounted in bearings A These bearin gs are pivoted or trunnioned in boxes A, which slide in ways formed in the two upright frames which support the wheel. Each box A is provided with a threaded stem A A cup-shaped washer A is arranged upon each stem, and the coil-springs A are arranged for compression between these washers and similar washers A which bear against the frames.- The washers A are backed by nuts A. By rotating these nuts the boxes A can be adjusted alpng their ways, so as to tighten up the band, and as the bearings are pivoted or trunnioned in these boxes the wheel can be skewed by tightening up one side only, this being necessary at times in order to properly train the band. The springs A permit the band-wheel to yield or shift in case some object or substance comes between the band and one of the wheels. In this way breakage due to a sudden increase in the tension of the band is avoided. By the time the embossed composition reaches the left-hand end of the machine it has become dry or hard enough to permit the ornament to be shaved or pared off and removed from the machine. This is accomplished by providing a knife L, which is adjusted so as to pare off the ornament as it moves along, leaving the residue or balance of the composition still sticking to the band. The ornament slides over the knife, while the residue passes beneath, and the ornament or strip of embossed composition thus separated from the band can now be cut off in suitable lengths and lifted from its traveling support. The knife is preferably arranged diagonally or obliquely to the line of progression, so to have a shearing effect or action, and the band while passing over the crowned wheel is convex in crosssection the knife is therefore preferably twisted or spiral in form, so as to permit it to conform to the curved surface ofthe said band. In this way the edge of the knife is ICO presentedata uniform-distance from the band for'the full length of the knife, and at the same time such edge can be straight and of a character to insure a uniform or like shearing action along its entire length. This will be understood by an inspection of Figs. 21, 20, and 7 of the drawings. the conformation of the knife to the curvature of the band, and Fig. 20 shows the twist or spiral form of the knife, while from Fig. 7 it will be seen that the edge of the knife when viewed from above is perfectly straight and that for this reason the shearing action is, as stated, uniform for the full length of the knife. The plate L, to which the knife is secured, is provided with vertical slotsl and is secured to the frame L by bolts Z. These bolts extend through horizontal slots 3 in said frame, and with this construction it will be readily seen that the knife can be adjusted vertically and also horizontally by simply loosening the nuts of said bolts. This, however, is a rough adjustment, and for the purpose of securing a more delicate and accurate adjustment I provide the following devices: The frame L is slidably mounted upon a bar L and an adjustingscrew L is provided for adjusting the frame along said bar, so as to move the knife endwise. The cylindric end portions of said bar are mounted in the split heads of the stems L and are clamped therein by the screws Z By loosening these screws the bar L can be I partially rotated, so as to raise or. lower the heel of the knife, and thereby facilitate the cutting. The stems L are'threaded and supported by brackets L adjustably clamped upon the rods L Each stem is provided with an adjusting-nut L and by rotating these nuts the stems can be raised or lowered,thereby giving the knifea delicate vertical adjustment. The brackets L? are clamped upon the rods L by screws Z and by adjusting these brackets along said rods the an gulari ty of the knife can be varied at will and the shearing action'of the knife thereby regulated to suit the character of the work. After the I for disposingof the residue and'cleaning the band for the reception of the fresh composition are, it will be observed, all adjustably mounted upon the rods U, which extend along the band at either side thereof. A scraper P is also provided for scraping the periphery of the band-Wheel A. The lower leaf of the endless band, which is preferably of steel or some other suitable metal, can be Fig. 21 shows inclosed in a housing or box R. The bearings of the wheel A are swiveled, so as to permit the wheel to be skewed for the purpose of properly training the band, and as these swiveled bearings are similar to those already described a detailed description there of will not be necessary. It will be observed, however, that these hearings do not involve the use of the springs, as do those for the wheel A, and that consequently the adj ust-' ing-nuts 01, bear directly against the frame. Of the idler-rolls 1 those which support the upper leaf can be of any suitable form, while those for supporting the lower leaf are preferably recessed or cut away at their middle portions, so as to contact with only the marginal portions of the band, thereby permitting the embossed composition to pass these lower rolls without being mutilated or disfigured.

From the foregoing it will now be seen that I provide a machine whereby a plastic material can be molded or formed into a continuous strip of ornamental relief-work, which canbe cut up into suitable lengths and readily applied to the picture-molding, that I form or mold the ornament without passing the wooden portion of the picture molding through the machine, and that I provide a simple and easily-operated machine whereby the ornamentation for picture-molding can be rapidly and cheaply produced.

What I claim as my invention is 1. In a molding-machine, the combination of a plurality of band-wheels having convex or crowned peripheries, a metal band trained over said wheels and adapted to serve as a traveling support for the plastic material,

means for embossing said material as it moves along with said band, and a twisted or spiral knife arranged obliquely across the band, and in position to shave off the ornament, the spiral form of the knife permitting it to conform to the curved surface which the,

band presents while passing around one of said Wheels, and the arrangement being such that the severed ornament passes over the knife and moves along with said band.

2. A molding-machine comprising a plurality of band-wheels, a metal band trained over said wheels and providing a traveling support for the plastic material, means for embossing said material as it moves along with said band, a bar extending transversely above the belt and having its ends mounted in hearings or blocks, said bearings beingadj ustable both horizontally and vertically, a knife adjustably mounted upon said bar and arranged in position to separate the Ornament from the band, said ornament passing overthe'knife and moving on with said band, substantially as described.

3. A molding-machine comprising a couple of band-wheels mounted upon structures arranged at a suitable distance apart, a band trained over said wheels and providing a traveling support for the plastic material, a third structure arranged at a suitable point between said wheels and providing a support for an embossing-roll, a fourth structure arranged at a point between said roll and one of said Wheels, idler-rolls mounted upon said fourth structure and arranged to support the upper and lower leaves of said band, said idler-rolls being vertically adjustable, and a knife for shaving off the ornament, said band being of a length to give the embossed material time to dry to the proper extent before reaching said knife, and the severed ornament passing over the knife and moving on with said band, substantially as described 4. In a molding-machine, the combination of a traveling support for the plastic material, an embossing-roll or rotary die, a body frame or structure upon which said roll is mounted, guides arranged above the upper leaf of the hand and adapted for guiding the plastic material to said roll, and horizontally disposed and telescoping or extensible connections between said guides and said body-frame, said connections being horizontally extensible in a direction transverse to said band, so as to permit the distance between the guides to be varied at will, substantially as described.

5. In a molding-machine, the combination of a traveling support for the plastic material, an embossing-roll, a verticallyadjustable frame having portions which extend upwardly at either side of said traveling support, a shaft arranged above said traveling support, screws extending through said upwardly-extending portions and having their ends engaging the ends of said shaft, a couple of disks adjustably clamped upon said shaft and provided with sharp edges which contact with the upper surface of said traveling support, a threaded stem secured to the lower portion of said vertically-adjustable frame, and bevelgearing applied to said stem, substantially as and for the purpose set forth.

6. In a molding-machine, the combination of a traveling support for the plastic material, a shaft arranged above said support, a pair of split collars clamped upon said shaft, an embossing-roll arranged between and keyed to said collars, a second shaft arranged below said travelingsupport and gear connected with said first-mentioned shaft, a roll on said second shaft supporting said traveling support, a sleeve loosely mounted upon said second shaft and having its end portion formed with teeth, a plurality of different-sized pulleys secured to said sleeve, a third shaft, a gear-wheel on said third shaft engaging the teeth on said sleeve, a gear-wheel on said second shaft, and a pinion on said third shaft engaging said last-mentioned gear-wheel, the said sleeve rotating in the same direction as the shaft upon which it is mounted, but ata higher rate of speed, substantially as and for the purpose set forth.

7. In a molding-machine, the combination of a couple of bandwheels, a metal band trained over said wheels and providingatraveling support for the plastic material, an embossing-roll, a structure arranged between said roll and one of said band-wheels, said structure comprising a pair of vertically-disposed and adjustably supported rods arranged at either side of said band, bearings adjust-ably secured upon the upper end portions of said rods, an idler-roll journaled in said bearings and supporting the upper leaf of said baud, similar bearings secured to the lower end portions of said rods, an idler-roll journaled in said bearings and supporting the lower leaf of said band, said last-mentioned roll being recesset'l at its middle to permit the embossed material to pass, and a knife for paring or shaving off the ornament, the length of the band being sulficient to give the embossed material time to dry to the proper extent before reaching said knife, sub stantially as described.

8. A molding-machine comprising a plurality of pulley or band wheels, a metal band or belt trained over said wheels and adapted to provide a traveling support for the plastic material, an impression-roll for embossing said material asit moves along with said band or belt, a knife for shaving off the ornament, the distance between said knife and the iin pression-roll being sufficient to give the embossed material time to dry to the properextent before reaching the knife, and the said knife being arranged in such manner that the severed ornament passes over the knife and then moves along resting upon the residue, substantially as described.

9. A molding-machine comprisingan endless band or belt adapted to serve as a traveling support for the plastic material, a to tary die or impression-roll, and a knife for shaving off the ornament as it moves along with said belt, the arrangement being such that the severed ornament passes over the knife and continues its forward movement resting upon the residue, substantially as described.

10. A molding-machine comprising an endless metal belt adapted to provide a traveling supportfor the plastic material to be embossed or ornamented, an impression-roll arranged above the upper leaf of said belt and provided with a periphery suitable for embossing or ornalnenting the composition asit moves along with the said belt, knives for trimming off the surplus marginal portions of the composition after passing under the impression-roll, a knife for separating the ornament from the belt, means for removing the residue from the belt, and means for driving said belt.

11. A molding-machine comprising a pluralityof pulleys or belt-wheelshaving crowned peripheries, an endless steel band or belt trained over said wheels and adapted to provide a traveling support for the composition or other plastic material, means for driving said belt, an impression-roll arranged above the upper leaf of said belt, a pair of circular cutters and a pair of plow-shaped trimmers for cutting and trimming off the surplus marginal portions of the composition after it passes under the said impression-roll, a spiral-shaped knife arranged over one of said pulleys or belt-wheels and adapted to separate the ornament from the belt or band, and a scraper and a deflector for removing the residue from the said belt.

12. A molding-machine comprising a plurality of pulleys orbelt-wheels having crowned peripheries, an endless band or belt trained over said wheels and adapted to provide a traveling support for the plastic material to be operated upon,an im pression-roll arranged above the upper leaf of said belt and provided with a periphery suitable for embossing or ornamenting the plastic material as it moves alongwith the said band or belt, means for trimming off the surplus marginal portions of the plastic material after passing from under the said roll, a knife for separating the embossed or ornamental material from the band or belt, means for removing the residue therefrom, scrapers for scraping the peripheries of the wheels over which the band or belt is trained, and means for scrapingthe inner surface of said band or belt.

13. A molding-machine comprising a pluralityof band-wheels havingcrowned peripheries, an endless steel band trained over said wheels and adapted to provide a traveling support for the plastic material to be operated upon, means for embossing or ornamenting said material as it moves along with said band, a spiral knife arranged over one of said wheels and adapted to sever the ornament from the band, means for removing the residue therefrom, and adjusting devices adapted and applied for adjusting said knife.

14. A molding-machine comprising a plurality of band-wheels having crowned peripheries, an endless steel band trained over said .4 wheels and; adapted to provide a traveling support for the composition, means for embossing or or-namenting said composition as it moves along with the said band, means for trimming off the surplus marginal portions ;of the composition, a knife for severing the ornament from the band, means for removing the residue therefrom, and adjusting devices adapted and applied for adjusting the said knife verticallyand horizontally and, for raising and lowering the heel of the same so as to vary its angle, substantially as and for the purpose set forth.

15. A molding-machine comprising a plurality of ban d-wheels, an endlessband trained over said wheels and adapted toprovide a traveling support for the plastic material to be treated, springs applied to one of said wheels for the purpose set forth, means for driving said belt, means for embossing or ornamen ting said plastic material as it moves along with said belt, and means for separating the ornament from the belt.

16. A molding-machine comprising a plurality of band-wheels having crowned peripheries, an endless band trained over said wheels and adapted to provide a traveling support for the plastic material to be treated, means for driving said band, means for embossing or ornamenting said material as it moves along with said band, means for separating the ornament from the band, and adjusting devices adapted and applied for'skewing said wheels, substantially as and for the purpose set forth.

1?. A molding-machine comprising a plurality of band-Wheels, an endless band trained over said wheels and adapted to provide a traveling support for the plastic material to be treated, swiveled bearings for said wheels whereby such wheel can be skewed at will, adjusting devices adapted and applied for adjusting said wheel, means for driving said band, means for embossing or ornamenting said plastic material as it moves along with said band, and means for separating the ornament from the band.

18. Amolding-machine eomprisingsuit-able band.-wheels, an" endless band trained over said wheels and adapted to providea traveling support for the plastic material to be treated, means for driving said band, swiveled bearings for one of said wheels whereby i such wheels can be skewed at will, adjusting -devices adapted and applied for adjust-ing v said wheels, springs applied to one of said wheels so as to permit such wheel to yield under an increased tension of the band, means for embossing or ornamenting the plastic material as it moves along With said band, and means for separating the ornament from the-band.

l9. Amolding-machine comprisingsuitable band-wheels, an endless band trained over said wheels and adapted to provide a traveling support for the plastic material to be treated, the bearings for one of said wheels being swiveled in boxes or blocks which slide in ways, springs applied to said boxes or blocks for the purpose of permitting the wheel to yield under an increased tension of the band, adjusting devices adapted and applied for adjusting said boxes or blocks along the said Ways, means fordrivingsaid band, means for embossing or ornamenting said plastic material as it moves along with said traveling band, and a knife for severing the ornament from the band.

20. A molding-machinecomprising suitable band-Wheels, an endless band trained over said wheels and adapted to provide a traveling support for the plastic material to be treated, means for driving said band, bearings for'one of said wheels swiveled in boxes or blocks which slide in ways, threaded rods secured to said boxes or blocks, nuts on said rods, coil-springs arranged on the rods be tween the said nuts and the body-franc e, means for embossing or ornamenting said plastic material as it moves along with said band, and a knife for severing the ornament from the said band. 

